Population and biodiversity insights


Homo sapiens became the first species to stop living inside local ecosystems. All other species, including our ancestral hominid ancestors, all pre-agricultural humans, and remnant hunter-gatherer societies still extant exist as semi-isolated populations playing specific roles (i.e., have “niches”) in local ecosystems. This is not so with post-agricultural revolution humans, who in effect have stepped outside local ecosystems. Indeed, to develop agriculture is essentially to declare war on ecosystems
. -- Niles Eldredge

The materials on the "core ecological issues" page point to why it is critical we preserve biodiversity and protect the health of ecosystems. The web of life is Earth's life support system for all species including our own. Yet we are in the midst of the sixth mass extinction event in Earth's history. This one is human-caused. To mitigate its impact we must pursue direct protection of wildlife and habitat while we do what we can to address the size and growth of the human population. (See the closely related "problem of agriculture" on the "core ecological issues" page.) These links should be of help in understanding some biodiversity and population issues.